Red Phantom Tetra (Hyphessobrycon sweglesi)
Red Phantom Tetra (Hyphessobrycon sweglesi) brings schooling movement with a clearly named colour or pattern to a suitably prepared aquarium. Plan its home around adult space, water, diet and social needs rather than the current sale size.
Quick Facts
- Scientific name: Hyphessobrycon sweglesi
- Product type: schooling freshwater fish
- Sale unit: One individual per quantity ordered unless the listing states otherwise
- Social needs: Social fish generally best kept in an appropriate group; fin-nipping potential varies by species
Is this for you?
Perfect if: you want a vibrant, active schooling fish that adds dynamic movement to your aquarium.
FAQ
What is the ideal group size for Red Phantom Tetras?
Red Phantom Tetras are social fish and should be kept in groups of at least 6 to ensure natural behavior and reduce stress.
Are Red Phantom Tetras prone to fin-nipping?
Fin-nipping potential varies by species and tank conditions; they are generally mild but may nip in overcrowded or aggressive environments.
What water conditions do they prefer?
They thrive in warm, stable freshwater with a pH between 6.0 and 7.0 and a temperature range of 22–28°C.

Connor Cameron –
The Red Phantom Tetras are very active and add a lot of visual interest to my community tank. I kept them in a group of six and they swim together in a coordinated way. They seem healthy and eat well from the standard fish food I provide.
Jason Brown –
I bought a small group for my 55-gallon tank. They are colorful and lively, though I had to make sure the tank had plenty of open space and hiding spots. No aggression observed so far.
Evan Murray –
Great addition to a freshwater setup. The red coloration stands out well in the tank. I’ve kept them for three months and they are still active and healthy.